Air or gas lift for fluids.



PATENTED MAY 10, 1904.

W. B. HARRIS.

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UNITED STATES Patented May 10, 1904.

PATENT OFFICE.

AIR OR GAS LIFT FOR FLUIDS.

SPECIFICATION forming part of Letters Patent N0. 759,706, dated May 10, 1904.

Application filed July 6,1903. Serial No. 164.360. (No model.)

To (tlf, whom t may concern:

Be it known that I, WALTER B. HARRIS, of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Air or Gas Lift for Fluids; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts.

rIhe object of this invention is to provide novel means for elevating or pumping water, oil, or other fluid out of a Well or the like by the use of compressed air or gas or the like.

The feature of this invention consists in providing a casing with a single delivery-tube therein and with a number of ejectors at intervals and independent pipes leading to each ejector, through which compressed air or gas may be forced, and also combining there with means for introducing compressed air or gas in the casing upon the body of liquid.

The full nature of this invention will be understood from the accompanying drawings and the following description and claim.

In the drawings, Figure 1 is a central vertical section longitudinally through the head with parts broken away. Fig. 2 is a central vertical section of the upper part of the device transversely through the head with parts broken away. Fig. 3 is a section on the line 3 3 of Fig. 1.

In detail, 10 is a casing having' on it ahead 11, that is air-tight. A delivery-tube 12 eX- tends from the top to the bottom of the well and at the bottom is secured to the ejector 13, which carries on its intake end a strainer 14. There are ejectors 13 at intervals in said delivery-tube, and said tube is larger above each ejector than below it. In what is shown herein there are three ejeetors, and these are connected with three air or gas pipes 15 of substantially the same dimensions, through which compressed air or gas may be forced from any suitable supply. The pipe l5 at the left of Fig. 1 extends to the bottom ejector and lifts the fiuid at least as high as the ejector above it. The pipe 15 shown at the right of Figs. 1 and 2 leads to the middle ejector and lifts the fluid therefrom to the ejector above it. The pipe 15 at the left of Fig. 2 extends to the upper ejector and forces the fluid therefrom out of the mouth of the delivery-tube. There are therefore three seetions in this pump, each of which may be about five hundred feet long, so that the compressed air entering' each pipe 15 lifts the fluid about the same distance, and by having a succession of lifts the air or gas need not be introduced at a very high pressurew-say a forty-live-pound pressure being sufficient. Whenever cour pressed air or gas is introduced into the easing 10 through the pipe 20, so as to force down the body of iiuid, it cooperates with the foregoing parts in elevating the fluid. l/Vithout compressed air or gas being forced through the pipe 2O higher pressure will be needed through the pipes 15. A blow-ofi pipe Lt() is provided at the upper end of the casing with a valve 41, so as to relieve the pressure within the casing if it becomes excessive.

What I claim as my invention, and desire to secure by Letters Patent, is-

An air or gas lift for fluids including an airtight casing, a single delivery-pipe within the casing, ejectors connected with and arranged in said pipe at intervals, a separate pipe leading to each ejector through which compressed air or gas may be introduced, and means for introducing compressed air or gas into said casing to press downward upon the body of fluid therein.

In witness whereof I have hereunto aflixed my signature in the presence of the witnesses herein named.

WAIJIER B. HARRIS. Witnesses:

.Moon F. MARKS, J UDsoN J. SIIUIrrz. 

